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Water 2017, 9(4), 247; doi:10.3390/w9040247

Improved or Unimproved Urban Areas Effect on Soil and Water Quality

1
USDA-ARS-NLAE, Ames, IA 50011, USA
2
Iowa Stormwater Education Partnership, Ames, IA 50010, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Peter J. Coombes
Received: 10 February 2017 / Revised: 27 March 2017 / Accepted: 28 March 2017 / Published: 1 April 2017
(This article belongs to the Special Issue Urban Water Challenges)
View Full-Text   |   Download PDF [189 KB, uploaded 1 April 2017]

Abstract

Construction in urban areas usually results in compacted soil, which restricts plant growth and infiltration. Nutrients may be lost in storm runoff water and sediment. The purpose of this study was to determine if existing lawns benefit from aeration and surface compost additions without the negative impact of nutrient loss in runoff. Four sets of lawns were compared, with or without compost plus aeration, as a paired comparison. Surface bulk density was significantly reduced in the treated lawns (1.32 versus 1.42 Mg·m−3). Visual evaluation of soil structure showed improvement in the treated lawns. Of fifteen measurement dates over four years, four dates showed significantly higher surface soil water contents in the treated lawns compared with the untreated lawns. When compared over time, three of the four treated lawns had significantly higher soil water content than the untreated lawns. Nutrient concentrations in rainfall simulator runoff were not significantly different between treated and control lawns, which showed that compost did not negatively impact water quality. Compost and aeration helped restore soil quality for urban soils of recent construction. View Full-Text
Keywords: soil quality; water quality; urban soil; rainfall simulator soil quality; water quality; urban soil; rainfall simulator
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Logsdon, S.D.; Sauer, P. Improved or Unimproved Urban Areas Effect on Soil and Water Quality. Water 2017, 9, 247.

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